Home / 1,149,868,887.70-1,724,803,331.55-320,820,927.70

Finding the Fourth Proportional to 1,149,868,887.70, 1,724,803,331.55 and 320,820,927.70

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Solution

The fourth proportional to 1,149,868,887.70, 1,724,803,331.55 and 320,820,927.70 is: 481,231,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,868,887.70 : 1,724,803,331.55 = 320,820,927.70 : x
  2. Step 2: Convert to fraction form
    1,149,868,887.70/1,724,803,331.55 = 320,820,927.70/x
  3. Step 3: Cross multiply
    1,149,868,887.70x = 1,724,803,331.55 × 320,820,927.70
  4. Step 4: Simplify right side
    1,149,868,887.70x = 553,353,004,927,921,664
  5. Step 5: Solve for x
    x = 553,353,004,927,921,664/1,149,868,887.70
  6. Step 6: Final answer
    x = 481,231,391.55

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Half scale
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Double scale
Find fourth proportional to 1,149,868,888.70, 1,724,803,333.05 and 320,820,928.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.